Packing-box for paper-folding machines



Model.) 2 sheets-Sheet 1 T. C. DEXTER.

PACKING BOX FOR PAPER FOLDING MAGHINES./

No. 513.,"766. I Patented Jan. 30, 1894.

I'M" I' hm. h

WITNESSES: INVENTOR.

g i ifi-TEY.

\ AFNING comnuv.

' UNITED STATES P T T .Orrrcir.

TALBOT O. DEXTER, OF FULTON, NEW YORK.

PACKING-BOX FOR PAPER-FOLDING MACHINES.

SPECIFICATION forming part of Letters Patent No. 513,766, dated January30, 1894. Application filed April 28, 1893- Serial No. 472204. (Nomodel.) 7

To all whom it may concern.-

Be it known that I, TALBOT O. DEXTER, of Fulton, in the county ofOswego,in the State of New York, have invented new and usefulImprovements in Packing-Boxes for Paper- Folding Machines, of which thefollowing, taken in copnection with the accompanying drawings, is afull, clear, and exact description. 1

This invention relates to the class of packing boxes which are connectedto paper-folding machines and receive the folded sheets of paper andhold them packed side by side in a neat and compact manner. Such apacking box usually'consists of a trough receiving the folded sheets ofpaper from the folding machine and having in one end a longitudinallymovable paper-pusher, and in the opposite end a follower which by africtional hold upon the trough partially resists the pressure of thepaper in process of being packed in the trough between the aforesaidpusher and follower. Heretofore such frictional hold of the follower wasobtained by means of spring cushions attached to the sides of thefollower and bearing on the inner sides of the paper receiving trough.This construction I have found to be objectionable owing tothe fact thatthepaper-receiving trough is usually made adjustable in Width toaccommodate papers of different sizes, and said variations of the widthof the trough varies the tension of the aforesaid spring-cush ionscorrespondingly and consequently the follower is liable to be eitherdeprived of its requisite frictional hold on the trough, or receiveexcessive hold and thus become fastened or unduly bound in the trough.

The object of this invention is to obviate such defects, and to that endthe invention consists essentially in providing the paperreceivingtrough with longitudinal side-bearings on its base, and attaching to theunder side of the follower the friction cushions which engage theaforesaid side bearings, which latter are permanently secured in theirpositions and thus the friction cushions are maintained under a uniformtension during the adjustment of the width of the trough.

The invention also'consists in certain novelties in the details of theconstruction of the aforesaid packing box as hereinafter more fullydescribed and set forth in the claims.

In the annexed drawings Figure 1 is a side view of a paper-packing boxembodying my invention and showing the same partly filled with foldedpaper. Fig. 2 is a top plan view of the same in'its empty condition toillustrate the adj ustability of the width of the box or trough. Fig. 3is a transverse section on line 00, 0c, in Fig. 1, and an inner; faceview of the follower. Fig. 4 is a rear end view of the packing box. Fig.5 is a front endview of the same, and Fig. 6 is an inverted plan'view ofthe follower.

Similar letters of reference indicate corresponding parts.

A- represents the box or trough into which the folded sheets of paperare delivered from the folding machine as indicated in Fig. lof thedrawings, in which -rrdesignate the paper-folding rollers represented inthe act of folding the paper r'. This box or trough has one of itssiderwalls adjustable-laterally in its position, usually by means ofmetal plates fcountersunk in the top of the bottom-board of the troughand firmly secured thereto and provided with transverse slots Z-directly underneath which are grooves in the board parallel with theslots. Vertically through the side-Wall of the trough and through theslots Z- pass bolts t which have their heads under the plates f and areprovided with nuts on their upper ends bearing on top of the side wall.Said box or trough is thus adjustable in width to receive papers ofdifferent widths.

O represents the papenpusher which is in one end of the trough and isreciprocated longitudinally therein by mechanism usually receivingmotion from the folding machine which latter is constructed and operatedin various ways well understood by persons conversant in that art, andtherefore needs no illustration in this case.

An exemplification of one of the means of transmitting motion to thepaper pusher is shown in Fig. l of the drawings and consists ofa'revolving eccentric -D, the eccentric rod -D' connected to thelever -Iwhich is pivoted at one end to the frame of the folding machine, and atthe opposite end to the pitman P which latter is connected to the baseof the paper-pusher.

B denotes the follower against which the paper is packed by the pusher-(l. Said folon'the permanently located guides. erably form said guidesof a longitudinal slot lower and pusher are each faced with metal platesh on their inner sides, which plates are provided with horizontal slots1l through which pass the screws which fasten the plates in position.Said slots allow the plates to be shifted laterally and thus adjust thewidths of the follower and pusher to the width of the box or trough A.In this adjustment the friction or spring cushion, which hitherto wasattached to the side of the follower to press against the inner side ofthe trough, had its tension either reduced or increased and thus itsefficiency impaired. This defect I now obviate by employing permanentlylocated longitudinal guides on the bottom of the trough or box -A*.- andby attaching the spring-cushions to the base of the follower so as tobring said cushions to hear I pref- -a in the bottom of the trough A-,and attach to the under side of the base of the follower at oppositeends thereof the guideblocks -b-bby which the follower slides in saidslot.

To prevent the follower from being lifted from the bottom of the troughby the pressure offthe paper pushed against it by the pusher-O I providethe block b, which is directly under the vertical wall of the follower,with flanges c-cwhich engage the underside of the trough. When saidblock is formed of woodIform the aforesaid flanges by attaching to thebottom of the block a metal jplate which projects over the side edges ofthe block as shown.

Between the two blocks -b-b'- are the friction cushions which bear onthe vertical faces of the slot -a. These cushions I preferably form ofbowed arms -d-d pivoted to one of the aforesaid blocks, preferably theblock b-, and having a suitable spring ebetween their free ends. Forthis purpose I prefer to employ an expansive spiral spring surroundingthe stems 0-0-- fixed to the arms, one of the said stems being providedwith a nut or collar -0'- bearing on one end of the spring.

What I claimv as my invention is 1. The trough -A provided with thelongitudinal slot a-- in its bottom, the follower -B- provided on itsunder side with the guide-blocks -bbsliding in the aforesaid slot, theflanges c-con the block b engaging the under side of the trough, andfriction cushions on the under side of the follower engaging thevertical faces of the" slot --ain combination with tl1e"paper pusher--C- asset forth;

-c attached to the blockbandengaging the under side of the trough, thespring-arms -dcZ---- connected to the under side of the follower betweenthe blocks bb' and bearing on the vertical faces of the slot -a and thepusher --C-- in the opposite end'of thetrough, as set forth.

3. In combination with the trough -A provided with the longitudinal slot-ain its bottom, the paper-pusher -G- and follower -B, the blocks-b-battached to the bottom of the follower at the ends thereof andsliding in the aforesaid slot, the laterally movablearms --d-cZ- pivotedto one of 'said blocks, and the spring einterposed between the free endsof said arms, as set forth.

